Moons and some rings of Saturn, photographed by Cassini, 1 June 2004.  Enceladus is the largest moon seen here (the four diffraction spikes from the narrow-angle camera are unusually clear).  Prometheus sneaks into a couple of frames at the end, just inside the F Ring.  Outside the F Ring are the co-orbital moons Janus and Epimetheus, and I’ve chosen the end-point of the gif so that one loops almost seamlessly into the other.

Moons and some rings of Saturn, photographed by Cassini, 1 June 2004.  Enceladus is the largest moon seen here (the four diffraction spikes from the narrow-angle camera are unusually clear).  Prometheus sneaks into a couple of frames at the end, just inside the F Ring.  Outside the F Ring are the co-orbital moons Janus and Epimetheus, and I’ve chosen the end-point of the gif so that one loops almost seamlessly into the other.